FS: M4 Barrel

[tacshooter]

I have a M4 "low recoil" barrel for sale. would be a good candidate for an SBS conversion. Asking 650.00 + S&H.

For some reason i cannot add a pic??

If interested PM me.

[ERdept]

What do you mean by "low recoil" barrel?

 

Does this barrel lower recoil over the stock shotgun? If so, how does it do this.

 

Or, do you mean, that for some reason, it can fire low recoil shells and still cycle?

 

Again, How does it do this?

[adamlau]

Does you barrel have two, or four gas ports?

[tacshooter]

four ports